Fm92R Source Listing; Disable "Scan Inhibit" With Microphone Off-Hook; Emergency "Umbilical Cable" Replacement - Philips FM92E Manual

25: FM92R Source Listing:

1BE8 - Ch 1 frequencies (1st 3 bytes RX - 2nd 3 bytes TX)
1BF0 - Ch 2 frequencies, through to 1EF9 - Ch 99 frequencies.
1F31 - Default Power-up Channel - defaults to Lowest Channel programmed.
1F3E - Ch No (in Hex) of Highest Channel programmed
1F3F - Ch No (in Hex) of Lowest Channel programmed
1F40 - Lists Scan Group 1 Priority Channel.
1F4C - Lists Scan Group 2 Priority Channel.
1F41-1F4A - Scan Group 1 Channels
1F4B - No of Channels in Scan Group 1
1F4D-1F56 - Scan Group 2 Channels
1F57 - No of Channels in Scan Group 2
1F58 (01) and 1F59 (02) are the UP and DOWN buttons on the front panel.
1F64 - Eprom Checksum
1FE2-1FE4 - Date binary file created - stored in DDMMYY format (in decimal).
1FEB-1FEF - Indicates which Master Binary File was used.
eg. 30 30 32 30 3A - (0020:)
30 30 32 38 3A - (0028:)
30 30 32 39 3A - (0029:)

26: Disable "scan inhibit" with microphone off-hook:

Precautionary note: We are informed that this mod will disable some functions such as CTCSS, etc.
Normally, the FM92E will not go into "scan" mode unless the microphone is in its cradle. A magnet in the cradle
latches a reed switch in the microphone housing, to enable the scan feature.
To enable scanning without hanging up the microphone, locate SK405 at the hinge end of the Synthesiser
board, and short pins 1 & 3.

27: Emergency "umbilical cable" replacement:

The multi-pin cable which connects the control unit to the transceiver unit can be replaced by a standard IBM-PC
"joystick" extension cable, costing between $10 and $25. Be aware, though, that some cheap computer cables
are poorly shielded, and replacement with one of these is likely to result in an audible "whine" resulting from the
display switching circuitry pulses getting into the audio. You get what you pay for. If your replacement cable
doesn't have metal around the end connectors, it is almost certain to be noisy. I have overheard that cables from
DSE are okay.
Philips FM92E Conversion to 6 Meters:
FM91 (Hardware Code:9502 97340000)
FM92L (Hardware Code:9502 92330000)
FM92R (Hardware Code:9502 92340000)
Version 3.9 Page 62